static String
strutil_decrypt_tf(const String &original)
{
if(! strutil_has_twofish)
{
ERRORMESSAGE((_("Strong encryption algorithm not available.")));
return wxEmptyString;
}
if ( !setup_twofish() )
{
ERRORMESSAGE((_("Impossible to use encryption without password.")));
}
CryptData input;
input.FromHex(original.c_str()+1); // skip initial '-'
CryptData output;
int rc = TwoFishCrypt(0, 128, gs_GlobalPassword.utf8_str(), &input,&output);
if(rc)
{
return output.data;
}
return wxEmptyString;
}
/*
* All encrypted data is hex numbers. To distinguish between strong
* and weak data, we prefix the strong encryption with a '-'.
*/
static String
strutil_encrypt_tf(const String &original)
{
if ( setup_twofish() )
{
CryptData input(original.utf8_str());
CryptData output;
int rc = TwoFishCrypt(1, 128, gs_GlobalPassword.utf8_str(), &input ,&output);
if(rc)
{
String tmp = output.ToHex();
String tmp2;
tmp2 << '-' << tmp;
return tmp2;
}
}
else
{
ERRORMESSAGE((_("Impossible to use encryption without password.")));
}
return wxEmptyString;
}
//client -> us
void OSIEncryption::DecryptFromClient( const BYTE *in, BYTE *out, int len )
{
TwoFishCrypt( in, out, len );
}
//us -> server
void OSIEncryption::EncryptForServer( const BYTE *in, BYTE *out, int len )
{
TwoFishCrypt( in, out, len );
}
